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A vertical-lift bridge or just lift bridge is a type of movable bridge in which a span rises vertically while remaining parallel with the deck. The vertical lift offers several benefits over other movable bridges such as the bascule and swing-span bridges. Generally speaking, they cost less to build for longer moveable spans. [1]
The bridge is the world's heaviest and widest double-decked vertical-lift bridge. [6] More than 35,000 tons of concrete and 7,000 tons of steel went into the bridge, which replaced the narrow 54-year-old swing bridge, declared a menace to navigation on the busy Keweenaw Waterway. [7]
A bascule bridge (also referred to as a drawbridge or a lifting bridge) is a moveable bridge with a counterweight that continuously balances a span, or leaf, throughout its upward swing to provide clearance for boat traffic. It may be single- or double-leafed.
The Aerial Lift Bridge, earlier known as the Aerial Bridge or Aerial Ferry Bridge, is a landmark in the port city of Duluth, Minnesota.The span began life in 1905 as the United States' first transporter bridge: Only one other was ever constructed in the country, Sky Ride in Chicago. [2]
Pont Gustave-Flaubert – crossing the Seine at Rouen, this lift bridge is the highest vertical-lift bridge in Europe, [citation needed] allowing ships up to 55 m tall to pass under it. It is 670 m long, with a span of 116 metres [3]. A striking design feature, the two road sections are mounted outside the central towers.
A moveable bridge, or movable bridge, is a bridge that moves to allow passage for boats [1] or barges. [2] In American English, the term is synonymous with drawbridge , and the latter is the common term, but drawbridge can be limited to the narrower, historical definition used in some other forms of English, in which drawbridge refers to only a ...
The Harlem River Lift Bridge [1] (also known as the Park Avenue Bridge) is a vertical lift bridge carrying the Metro-North Railroad's Hudson Line, Harlem Line, and New Haven Line across the Harlem River between the boroughs of Manhattan and the Bronx in New York City. The average weekday ridership on the lines is 265,000. [2]
The Murray Morgan Bridge, also known as the 11th Street Bridge or City Waterway Bridge, is a vertical-lift bridge in Tacoma, Washington. It originally opened February 15, 1913, to replace an 1894 swing-span bridge. [1] The bridge connects downtown with the tidal flats, it spans the Thea Foss Waterway, originally